Ocean basins 3

More documents

Recommendations

Info

Atlantic Ocean• Rifting:– Central Atlantic 160 Ma– South Atlantic 110 Ma– NE Atlantic 55 Ma• Reorientations at– 55 Ma Labrador - NEAtlantic (perhaps due tohotspot impingement)– 35 Ma Aegir Ridge -Kolbensey Ridge42
Pacific Ocean• Complicated to reconstructbecause older than theAtlantic and subduction ofocean basins and spreadingcentres43
Page 1 and 2: 3. Ocean basinsTheir structure and
Page 3 and 4: Continental and oceanic lithosphere
Page 5 and 6: The most common plate boundaries•
Page 7 and 8: Types of plate boundaries7
Page 10 and 11: Magnetic anomaliesVolcano World web
Page 12 and 13: Plate motions from magnetic anomali
Page 14 and 15: Geometry of motion on a sphere; At
Page 16 and 17: Motions and earthquakesat plate bou
Page 19 and 20: Hot spot model• Age and geometry
Page 21 and 22: Hot spot distributionThis Dynamic E
Page 23 and 24: Direct measurements - exampleFowler
Page 25: Absolute plate motionsfrom very lon
Page 29 and 30: Plate tectonics II• Changes in pl
Page 31 and 32: Some obvious signs for past changes
Page 33 and 34: Change in the Norwegian-Greenland S
Page 35: Evolution of the San AndreasTransfo
Page 38: Present day subduction of a spreadi
Page 41: The age of the oceansMuller et al.,
Page 45 and 46: Magnetic anomaliesVolcano World web
Page 47 and 48: Magnetic anomalies- Eastern Pacific
Page 50 and 51: The Wilson Cycle• Describes the l
Page 52 and 53: Plume-relateduplift• depends on:-
Page 54 and 55: Passive rifting54
Page 56 and 57: Active rifting56
Page 58 and 59: Stages of ocean evolution1 - Embryo
Page 60 and 61: For next timeLook at animations at:
Page 62 and 63: The birth of an ocean1. The process
Page 64 and 65: Wilson Cycle Stage B - continentalr
Page 66 and 67: Northern Red Sea• Failed rift in
Page 68 and 69: A young ocean - The Red Sea• Wils
Page 70 and 71: Red Sea - crustal architecture• E
Page 72: An old ocean - the Mediterranean Se

Ocean basins 3

Create successful ePaper yourself

Delete template?

Save as template?